Ultra compact bathymetric measurement system chain for capture of shallow waters

用于捕获浅水区的超紧凑型测深测量系统链

• 批准号: 500085320
• 负责人: Professor Dr. Uwe Sörgel
• 金额: --
• 依托单位: Institut für Photogrammetrie
• 依托单位国家: 德国
• 项目类别: Research Grants (Transfer Project)
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/500085320?language=en
• 关键词: Ultra; compact; bathymetric; measurement; system

Waters are lifelines, but at the same time they also pose dangers. In order to prevent these dangers, an up-to-date and comprehensive database is required. In particular, knowledge of the topography of the watercourse near the banks and of the subsoil enables reliable flood simulations. Currently, echosounders or airborne bathymetry sensors are used for the geometric recording of waters, which can be used to precisely capture large waters. However, these sensors fail in small, shallow waters. It exists a drone-based bathymetry system on the market, but it can only be flown under strict regulations. Therefore, within the ACQUA-3D project, we are developing a small, compact, drone-based bathymetry measurement system in combination with comprehensive evaluation methods. The multi-sensor measuring system will be built up of a laser-based measuring unit consisting of two pulsed lasers including the corresponding receiver units and a multi-spectral camera system with RGB, Costal Blue and NIR channels. This allows to capture the water surface as well as the water bottom. The measurements are evaluated with the automated evaluation algorithms developed within the framework of the preceding DFG project. The evaluation and optimisation of the entire process chain is ensured by the industrial partners EOMAP and GEO Group. In addition to a wealth of experience, the industrial partners can generate extensive reference data sets.

水域是生命线，但同时也带来危险。为了防止这些危险，需要一个最新且全面的数据库。特别是，了解河岸附近水道和底土的地形可以实现可靠的洪水模拟。目前，回声测深仪或机载测深传感器用于水域的几何记录，可用于精确捕获大水域。然而，这些传感器在小而浅的水域中会失效。市场上存在基于无人机的测深系统，但它只能在严格的规定下飞行。因此，在ACQUA-3D项目中，我们正在开发一种小型、紧凑、基于无人机的测深测量系统，并结合综合评估方法。多传感器测量系统将由基于激光的测量单元组成，该测量单元由两个脉冲激光器（包括相应的接收器单元）和一个具有 RGB、海岸蓝和近红外通道的多光谱相机系统组成。这样可以捕获水面和水底。使用在先前 DFG 项目框架内开发的自动评估算法来评估测量结果。整个工艺链的评估和优化由工业合作伙伴 EOMAP 和 GEO 集团负责。除了丰富的经验之外，工业合作伙伴还可以生成广泛的参考数据集。